I have a small canvas called canvasA (30px x 30px) on top of
a bigger canvas called CanvasB (200px x 200px). I want canvasB to
fire click event. The problem is when my mouse is on top of canvasA
I dont get the click event from canvasB. I am getting it from
canvasA because it is on the top. how can i get click event from
canvasB even when my mouse is on canvasA?